Train-controlling and stopping system.



I J.-F. WEBB, JR. TRAIN GONTROLLING AND STOPPING SYSTEM.

APPLICATION FILED 111311.27, 1914.

Patented Jan.19,1915.

6 SHEETS-SHEET 1.

I l &

J. F.- WEBB, JR. TRAIN CONTROLLING AND STOPPING SYSTEM.

APPLICATION FILED APR. 27, 1914.

Patented Jan. 19, 1915.

- INVENTUR Jan I'M/e522, J

I v ATTORNEY-5.

J. F. WEBBgJR. TRAIN CONTROLLING AND STOPPING SYSTEM.

APPLIUATION FILED APR. 2?, 19m.

Patented Jan. 19,1915.

6 SHEETS-SHEET 3.

61' 4'9 Wflgsfs: I INVENTOR I By A TTORNE Y6 J. F. WEBB, JR. TRAIN CONTROLLING AND STOPPING SYSTEM.

APPLICATION FILED APR. 27, 1914.

1,125,411 9. Patented Jan. 19, 1915.

6 SEEETS-SHEET 4.

WITNESSES: I MENTOR 247 J an F WebZ J A TTOR/VEYS J F. WEBB, JR. TRAIN CONTROLLING AND STOPPING SYSTEM.

APPLICATION HLEI) APR.27,1911.

0 SHEETS-SHEET 5.

INI/ENTO 1 fi Ms-5, e15:

Patented J an. 19, 1915 a z i J. F. WEBB, JR. TRAIN CONTROLLING AND STOPPING SYSTEM.

APPLICATION FILED APR.27, 1014.

1, 125,41 9. Patented Jan. 19, 1915.

v iQHEEES SHEET 6. I "1 LI.

WITNESSES: lNl/E/V TOR efecuz A o/m/Ers. o

,UMTED s'rarns PATENT our-10 was r. w en, an, or n' nw 220 1;, n. is ass e von TO rnn mrnnua'rmusn SIGNAL company, or nsw renn n, Y., a coinsojraarron.

maniconrsotmno AND s rorrmo SYSTEM.

'. To all whom it may concern:

' Be it known that I, JEAN F. WEBB, J12, residing at New York, in the county of New York and State of New York, have invented brake system and is normally held in its closed position by suitable devices that-cooperate with the valve stem, the holding devices being releasable by a. plunger that engages a fixed track stop or tripping ramp along the right of way. The train carried mechanism also includes an *iiutomatic resetting device which, when operated by a controlled track fixture, resets the holding de vices, thereby closing the air valve and .prsventing its further action. In practice the controlled track fixture isy'set a predeter- V mined distance from the tripping ramp to 'reset the air valve and. its holding device almost instantly latter the plunger has engaged and left the tripping ramp, to release the holding devices.

- application of the brakes, unless the controlled ti'ack fixture be in its danger po- .sition, does "not takeplace. lithe controlled track fixture be in its danger position, the resetting devices do not come. into action, and after the fixed ramp is passed by the releasingplunger, the air valve will remain open and permit the application of the-brakes. In that applicationl have also disclosed amanually operative device that cooperates with the resetting mechanism of th'etrain carried fixture, whereby the engiuser may reset the same from the cab, subject, however, to the action of a speed controlled lock' that prevents the operation of themanual resetting device when the speed oftlie train is above a predeterminedgnink mum. e

The apparatus which iorms the subjectmatter of this application contains the same generic matter abovereferred to. 'I3he pres: ent invention, however, compzjifies certain improvements in the-apparatus which render it more cfi'ec iv and reliab e, thepbiss of? the communication between the appa- In' this manner, the

V specification of Letters letent. Patented Jan. 19, 191 5- .nppljcation filed April s, 191 -.Se rie1 N0. 834,S65.

being to simplify the construction of ,the appa1;a.tus,strengthen the parts, providemeans for automatically removing snow and ice from the path of the shoe so that the operation of the apparatus may not be impaired, and to generally improve the construction of the parts.

Again, the present invention includes certain improvements in the construction of the speed governed latch device, and it also includes an improved. mechanism whereby, when the automatic apparatus is in-operib tion, the connection between the main air neservoir'and the tnain pipe pro per of the air brake system, in which connection the engineers valve and the double-heading valve are located, is automatically interrupted so as to render the .engineers control inoperative until the automatic apparatus has been reset, {and at the same time to cut ratus and the main reservoir in such a way, that the main reservoir pressure will not be unnecessarily lost.

' In its more detailed nature. the invention includes those novel details of construction, comb nation and arrangement of partspall of which will be first fully described, then be specifically pointed out in the appended claims, and illustrated in the accompanying drawings, in whichz A Figure 1 is a front elevation of the train carried apparatus, thecover plate of the housing being removed and a part of the plungersupport and the plunger being shown in section. Fig. 2 is a vertical section on the line'2'-2 of Fig. 1. Fig. 3 is a 11 is a rear elevation of the speed controlled latch mechanism. Fig. 12 is atop plan view of the same. Fig. '13 is 'an enlarged side elevation of the improved valve mechanism,

thenpper cover section being removed. Fig. i4 is a side elevation-10f the-same. 15 g w s enlarged scrtwal s onwe cross section on line 1010 on Fig. 2. Fig.

15-45 on Fig. 13. Fig. 16 is a detail perspective view of the valve which controls the passage between the train pipe air charm her and the exhaust air chamber. Fig. 17 is a detail perspective view of the valve which controls communication between the main reservoir chamber and the train pipe air chamber of the valve mechanism. Fig. 18 is a. diagrammatic view illustrating the connection between the valve mechanism of my apparatus, and the air brake systen'i of the train. Fig. 15) is a view similar to Fig. 2, showing a modification en'iploying a swinging plunger support similar to the form. shown in my ap t lication aforesaid. Fig. 20 is a detail view of a i'nodil'ication of the shoe.

In the drawings, in which like letters and numerals indicate like parts in all of the figures, 1 represents the housing of the main portion of the traincarried apparainls the front of which is prefera ly provided with a removable door or cover 2, and the housing is also provided with a depending plunger support 3, which may be integrally formed, as shown in Figs. 1, and 2, or separately formed and mounted on a pivot. as shown in Fig. 19, in a manner similar to that disclosed in my application first aforesaid.

*1 designates the forwardly projecting sup port for the balanced oscillatable shaft 19. This shaft is of substantially the same construction as that disclosed in my latent #1033970, issued on the 30th day of July,

1912, and in the present application I make no claim. 7787' so. to such shaft construction, as it. per se, constitutes no part of the pres ent invention.

The housing 9. has oppositely disposed in-- ternal bosses 5 to receive the bearing bushings G that are carried by the valve operatat S to the bushings (3 and also to the multiple cam 9. The earn 9 has three distinct operative parts: the part 10 cooperating with the cam finger 53 (hereinafter referred to), the part 11 coiipe 'ating with the plungcr 27 and the part 12 coiiperating with the latch 14, the part 12 being in the nature oi an arm Whose end is provided with a latch receiving notch 13.

15 is a rod that is reciprocably mounted in suitable bearing apertures to be moved in a direction transverse to the direction of the shaft 7, and the rod 15 is provided with av head 16 which is dove-tailed into a. slideway 20 that forms a guide and support for the head. The head 16 is cutaway at one side to leave stops 1? and 18 between which the cam arm member 12 lies. 19 is another stop carried by the head 16 to engage the supporting guideway 20 to limit the movement of the rod 15 in the resetting direction; the rod 15 being normally pushed in the opposite direction by a spring 21. 'llhe rod 15 projects in cam shaft 7. the said shaft 7 bein keyed.

h r-i through hearings in the speed controlled latch housing 119 and has a threaded end '23 onto which the engineers control rod (not shown) may be attached. lhe rod 15 also provided with a notch 22 for a purpose later explained. The housing it at the bore for the shaft 7 and its bushings t, is closed by a. suitable plug 21 (see Fig. l) and there, are provided suitable lug through the medium of which the mechanism may be sup- POItQtl on the engine. prel'mab y beneath the butler beai'n adiarcnt to the pilot.

The support- '5 bored at 3 to receive the pli'inojcr 27. The plunger .27 is of the re ciprocating tvpe and has. a stem I138 what-c upper nd tl'u'eaded at 3 to tap into the. threaded bore of the head se n or, the stem 25; being flattened at i where it pa through the o ni in the bottom oi housing .2 so to prevor -1wivrliuef oi" plunger 'l'he plui i is l wardly by a suitable sprin;, 531) and is prorifled at its lower rad a'iih a shoe U"? oi Ll lfieculiar construction which lornr", one o the esi-wntia mp o.ements: embod ed in lh invention. The shoe iii) in united will. 1;! plunger 97 bv a thin portion Ill. which is: d

signed to lin'eal: in the event a undue strai so as not to ruin the plunger proper.

39. is a bore which extends shown ihroi the plunger rn-opei E17. through the thin portion 31 and a short distance into the shoe Iit. The purpose 0! this lIJUl'U will be lat r ex plained.

The shoe 3) which. as betore stated, i ornis one of the essential immovements ot the present in ention. is in the nature ol a lint plate. the trout 'lace S3 of which is be eled upwardly and baeltwardlv and prc'lerabl from the inner side hnvard the outer side. so as to fo m a knife or olou lilu: nmnber to shear otl' any snow and ice that may accumulate on the path through which the shoe moves and throw it to one s de. The outer side of the shoe 27-0 is also s m larly be ed vertically and inwardly, as best shown in F g. 1. or the lit eling mar be double. as indicated in Fig. 2%). Another feature oi the shoe is that the under l ar-e oi it is preferably not in a true horizontal plane. but is located in a plane that slants forwardly and upwardlv a slight distance. from the lioi' '/;ontal. wherebv the trout edge 31 of the shoe will be slightlv elevated from contact with the ramp and thereby pre ent the trout sharp knife edge of the shoe from being dulled by contact with the ramp, the horhaontal plane being indicated in Fig. '2 by dot and dash line 3:).

I find it advantageous to make the head of the plunger in two sect ons ST I l and pivot the same together. This construction is best illustr: ted in Figs. 4- and 5 of the drawings. by reference towhich it will be seen that the section 37 is threaded onto the in vFigs. l and 2 ofthe draw on. a stud 54 that is fastened by a set 1n the d sk 50. The prqectmn 51 and I an 358x150 receive a bushing 59, to which upper endefkiahe stem 28, and has vteatthe same. l

" The upper section 4.4 is adapted to engage the ohm section '11 end the sections see? erefi os mellyvheld ineontaot, as shown in -Fig.- i,- liv .gravity,--nrefetably assisted by -sl'iiingcei'iwthe seeing i5 ,siojee iiig ,dewzi ivandiiv {zigaifisttlae fiat side i 36 and serving ssi-ledcciz is? die, section 3?, to gareve it its seeming .ijvlii. encing-e5 having let-stall projecting ears All which use secured to lugs er en the mere "her- 37,1 by. cot-tel? piss L8'er Olll1-5tlli3ttl6i6 p e tl atdelivei's to the whistle 112 or other e lower section of the valve n'ieclia iisrn "once threaded home,- the 'mea'ns,=.as shown in Figs. 2 and 6 eat the drawings. A

lit-is be balanced oscillatab s shaft, tee nstiucticn of which is best disclosed in. inv

atentiilacve referred to, and in 3 of sepresent drawings. and as" v ence thereto wiil .49 projects iteto the sensing 2 dial; 5!) (see fiigs. l, 2, 3 an" I 530 is pinned to the shaft ea, s

tuirn Witliit and it is provided a. lost that towns a stop for e heel of'tlie cam finger 53 which ivet ci screw the cam finger 53 are provided with allel'ly d sposed progectioiis 52- 536 respcc; twelybetween which a coil. spring 57 is held vito-,noici"nally retain the cam 53 1 the positionbestjdndicated in Fig. 7 of the drawings.

;The,plm1ger 27 has its stem tli dc line 60 from the valve mechanism is 61 is the resetting trip arm which is e; ried by the shaft 19, and is provided wit. buii'er meniliei's to engage-the co'ntrclled track fixture {not shown.) to reset the mechanism I .r

a The ioroved valve mechanism I v pee .96, 10mm tlie subjectenattecox a 52pm -rate application filed. on even-date i101 :Serial No 834866. is illustrated in ms.

i J: o i to 1! inclusive, and by reiei'ence to zese .1 figures it Will ol'iser-ved that tlie valve mechanism includes the main or lowei" section 65, the relatively permanently held upper section 36, and the removable therefor. The upper and lower ectiens 65-66 are provided with lugs 6 thi'ougli which the 'fasteniiig screws that fasten the valve mechanism to the housingQ may be passed. The lower and upper sections 65 436 are also prcvided with lugs 67, to re ccive the faste in'a screws 68 thathel'd the 65 parts together. Tide apps: section. zero cover 83 miss tapped. In addition to the openings '?0? 1,

o ening 72 losing the one into Which the one 73 is pipe 111 f the plunger while the other rend-ed for tee reception of the able signal.

.Lil

ncleses three distinct chambers 7 l-75-76, le' .iiaznbei' 7e being What I shall, for con- *eiiiencc term the main-reservoirsii chain- .o i, the chamber 7 shall seem the trainpi cliai and the other chamber 76, i term the exl mist-air clianibeim It i s *Qwv-tr !+1 t-t1 r- -q\ 1 1 d s sis ooc Una 1L: cciininr. cgy is use p" ularly for? the purpose of convenient v in the sense of ce is not used ion.

e. is a Siliifilllg be plugtliat is threaded into t1 e upper end of the lower section 65 0 close the chamber- 76 at its upper extrem- I78 and packing 80 to form an "-tigiit joint where the stem 79 passes .threueli the same. The stem Z9 is reduced to eive time head 82 which is pinned to the my: ease-tea and is provided with a straddle t.e collar" 89 that is $0 to the shaft 7 and thereby me movement of the head 82. The forked at 85 to straddle the keyed to the shaft '2 and in there is located a roller 85 on the cam 88. The PUP-- a 88'is to normally. hold the "ed i the lower end of the chamber Y6 there isleiieli is formed with the *crtically elongated openin 9;) which is carried by a at telescopes within the cup the cups apant.

i t is alve which controls ccmmunication betireenthe chambers 75 and 76. This valve, under normal conditions, is held closed'by the engagement of a pin fi'whiclf it carries in its bore 97, with the under face of the cup 5%. The valve 98 has a stem 99 which projects into the bore 100 of the tubular stem 101 of the main valve 102, The controls communication between 0 other openings T278 are provided, the

" 2mg 0 is tapped to lead air to the bore i v and tie plug '4'? is bored and provided located-in the cups, noranaemicings, it 'is-thought the complete construclion, operation and advantages of my invention Wlll bereadily understood by those skillgcl in the" art to which it relates.

1. a system-of the class described, a

train. earried apparatus including an air valve means holding said valve closed, a

device for releasing said holding means topermitsaid valve to open, means for resetting said holding means and thereby reclosing said valve, said releasing device including a plunger, said plunger including a main body portion, and a shoe united to the body portion by a connection that will break upon'application otexcessive stresses, anda tripping ramp for actuating said releasingdevice.

"2. In a system of the class described, a train carried apparatus including an air valve, means holdingsaid valve closed, a device for releasing said holding means to permit saidvalveto open, meansfor resetting said holding means and thereby reclosing -saidivalve, said releasing device including -a plunger, said plunger includ'ng a main body portion and a shoe, said shoe havi provision for cutting loose snow and ice from the path of its movement, and a tripping ramp for actuating said releasing device. 9 3. In an apparatus of the class described, a train carried apparatus including an air valve, means holding said valve closed, a device for releasing said holding means to permit said valve'to open, means for resetting said holding means to thereby reclose said valve, means located along the right of \vav for first actuating said releasing mzans and then actuating said resetting means, said releasing means including a plunger and an ice and snow plow shoe carried by said plunger to clear the shoe path along the right of way from obstructions.

a. In an apparatus of the class described, a train carried apparatus including an air val e, means holding said valve closed, a device for releasing said holding means to permit said valve to open, means for resetting said holding means to thereby reclose said valve, means located along the right of way for first actuating said releasing means, and then actuating said resetting means, said releasing means including a plunger and a plow shoe carried by said plunger to clear the path of travel of the shoe.

5. In a system of the class described. a ,train carried apparatus including a support, an air valve mechanism, a connection between-said mechanism and the engineers valve of the air brake system, a connection between said mechanism and the train pipe proper of the'air brake system, said mechanism including an exhaust port, ap valves for-controlling communication between said connections and said port, a device carried by said support and connected with said "valve mechanismfor normally hoiding said mechanism to effect communication between saidconnections with the en ineers valve and the train pipe and cut oii the exhaust duct, means cooperative with the aforesaid partsior releasing said. valve mechanism to out ed the connection with the engineers valve and. bring said train pipe connection in communication with the exhaustduct to set the brakes, means coiiperatingTviith said device for resetting said valve, mechanism, and devices located along the right of Way for operating said releasingand said resettingmeans. i

6. In a system of the class described, a train carried apparatus including an air valve, means holding said valve closed, a device for releasingsaidholding means to permit said valve to open, means for-resetting said holding means and thereby rec. osing said valve, means located along the right of way for actuating said-releasing o and saidr esetting means, and a manually operated resetting device including a rod, and a centrifugal governor and latch device for holding said rod non-operative above predetermined speeds, sald last named device including a supporting casing, guides carried thereby, a Weighted latch member mounted on said guides, a spindle, a sliding sleeve to engage. Slld latch, and a ball device connecting Slld. spindle and sleeve to raise said latch as the speed increases, said rod having a latch notch, said latch having a dog to engage the said rod, substantially as shown and described.

7. nr-a system of the class described, a l

train carried apparatus including an air valve, means holding said valve closed. a device for releasing said holding means to permit said valve to open, means for retoring said holding means and thereby reclasing said valve, means located along the right of way for-actuating said releasing and saidresetting-means, and a manually operated resetting device including a rod, and a centrifugal governor and latch device for holding said rod non-operative above predetermined speeds, said last named device including a supporting casing, gu des carriedthereby, a reversible weighted latch member mounted on said guides. a spindle, a sliding sleeve to engage said latch. and a hall device connecting said spindle and sleeve to raise-said latch as the speed increases, said rod having a latch notch, said said chambers, and

said plunger for cooperation latch having a pair of dogs to engage the said red one at a time according to the position oi? said latch.

in a train stopping apparatus, a support, a valve mechanism connectible with the air brake system and including a main air chamber, a train pipeair chamber, and an exhaust chamber, valve elements between said chambers, and a valve stem for engag ing said valve elen'ients, a rotatable shaft mounted in bearii'igs in said support, means on said shaft for engaging said valve stem to hold said valve elements in their normal position, a cam mci'i'iber mounted on said. shaft and including a plurality of cam elen'ients, a reci 'irocating plunger, a head on said plunger for cooperation with one of said cam elements to move said shaft to release said valve elements, a resetting shaft, a trip arm carried by said resetting shaft, and a cam linger carried by said resetting shaft to cooperate with another of said cam elements to reset said cam shaft and thereby restore said valve elements to their normal position.

9. ln a train stopping apparatus, a support, a valve mechanism connectible with the air brake system and including a main air chamber, a train pipe air chamber, and an exhaust chamber, valve elements between a valve stem l'or engaging said valve elements, a rotatable shait't mounted in hearings in said support, means on said shalt for .i'igaging said valve stem to hold said valve elements in their normal position, a cam member mounted on said shalt and including a plurality of cam elements, a reciprocating plunger, a head on with one of said cam elements to move said shaft to release said valve elements, a resetting shaft, a trip arm carried by said resetting shall, a cam linger carried by said resetting shaft to cooperate with another of said cam elements to reset said cam shaft and thereby restore said valve elements to their normal position, said plunger having an air duct cxtend'ng in its length, and a pipe connection betneen said duct and the train pipe air chamber of said valve mechanism, said valve elements of said valve mechanism adapted to normally elfect communication between said main reservoir air chamber and said train pipe air chamber and when released to open communication between said train pipe air chamber and said haust chamber andclose commuiiication between said train pipe air chamber and said main reservoir air chamber.

l0. In a train stopping apparatus, a support, a valve mechanism connectible with the air brake system and including a main air chan'iber. a train pipe air chamber, and an exhaust chamber, valve eleu'icnts between said chambers, and a valve stem 'lfor engagposition,

ing said valve elements, a rotatable shaft mounted in hearings in said support, means on said shaft for engaging said valve stem to hold said valve elements in their normal position, a cam member mounted on said shaft and including a plurality of cam elements, a reciprocating plunger, a head on said plunger for cooperation with one of said cam elements to move said shaft to reease said valve elements, a resetting shaft, a trip arm carried by said resetting shaft. a cam finger carried by said rcsetting'shaft to coilpe ate with another of said cam elements to reset said cam shaft and thereby restore said valve elements to their normal said resetting shaft cam finger comprising a yicldahle member adapted to yield in one direction, and means or holding said member in a normal position,

1 1.. In a train stopping apparatus, a support, a valve mechanism connectible with the air brake system and including a main air rhainber, a train pipe air chamber, and an exhaust chamber, valve elements between said chambers, and a valve stem for engaging said valve elements, a rotatable shaft mounted in bearings in said support, means on. said shaft for engaging said valve stem to hold said. valve elements in their normal position, a cam men'ibcr mounted on said shaft and including a plurality olf cam elements, a reciproi'zating plunger, :1 head on said plunger for cooperation with one of.

said cam elements to move said shaft to release said. valve elements, a rescttin shaft, a trip arm carried by said resetting shaft, a cam linger carried by said resetting shaft to cooi'len-ite with another of said ca'm elements to reset said cam shaft and thereby restore said valve elements to their normal position, saidplunger having an air duct extending in its length, a pipe connection between said duct and the train pipe air chamber of said valve mechanism, said valve elements of said mechanism adapted to normally ellect communication between said main reservoir air chamber and said train pipe air chamber and when released to open con'imunication' between said train pipe air chamber and said exhaust chambe and close communication between said train pipe air chamber and said main reservoir air chamber, said resetting shaft cam finger conun-ising a yicldablc member adapted to yield in one direction, and means for bolding said member in a normal position.

12. In a train stopping ap uiratus, a support, a valve mechanism connectiblc with the air brake system and including a main air chamber. a rain pipe air chamber, and an exhaust chamber, valve elements between said chambers, and a valve stem for engag ing said valve elements, a rotatable shaft mounted in bearings in said support, means on said shaft for engaging said valve stem said pluhger for cooperation with port, a

to hold said valve elements int-heir normal position, a cam member mou' ted on ct cam elc-- shaft and including a plurality ments, a reprocating plunger, a

said cam elements to move said shaft rerestore said valve elements to their normal position, said plunger 1621!}. including a 4 member secured to the plunger, an extension 15 pivoted to said member and adap ed to coand means holdiember in ing said valve elements, a rotatable shaft mounted in hearings in S'Hld'SUD'pOTC, means on said-shaft for engaging said valve stem to hold said valve elements in their normal position, a cam member moimted onrsaid shaft and including a plurality of cam elements, a reciprocating plunger, :1 head on said plunger for cooperation with one of said cam elements to move said shaft to re=- lease said valve elements, a resettingshatt,

a trip arm carried bv said resettingshaft,

a cam finger carried by said resett ng sha lt to cooperate with another of said cam olements to reset said cam shaft and therebv restore said valve elements to the-i normal position, said plunger having" an air duct extend ng in its length, a pipe connection between said duct and the train pipe air chamber of said valve mechanism, said valve elements of said valve mechanism adapted to normally effect communication between said main reservoir air chamber and said train pipe air chamber and when released to open communication between said train pipe air chamberiand said exhaust chamber and close communicationbetween said train pipe air; chamber and said main reservoir air chamber, said plunger hoadincluding' a member secured-to the plunger, an extension. pivoted to said member and adapted to co 5 operate with said cam, and means for holdmg said extension and said head member in normal contact.

ll. .ln a train stopping apparatr port, a, valve mechanism connee fill the air brake system and including main air chamber, a train pipe air chamber, and an exhaust chamber, valve elements between said chambers, and a valve stem for engaging said valve elements, a rotatable shaft mounted in bearings in said support, means engaging said valve stem valve elements in their normal cam member mounted on said including a plurality of cam elereciprocating plunger, ahead on cooperation with one "of said cam elements to move said shaft to re lease said valve elements, a resetting shaft, a trip arm c said resetting shaft, a

J3 sheit a.

e cum 1 ed y said resetting shaft to nother of said cam elements to reset said canshaft and thereby restore said valve. elements to their normal position, said resetting shaft cam finger comprising yieldable member adapted to yield in one T1,!)

a di tion, means for holding said. member:

a normal position, said plunger head ineluding; a member secured to the plunger, an, extension nivoted to said member and adapted to cooperate with said cam, and means for holding said extension and said head member in normal contact. 4

lfi ln a train'stoppingapparatus, a support, a valve mechanism connectible with the air brake system and including a main air chainbery-a train pipe air chamber, and an. exhaust chamber, valve ele ents between said chambers, and a valve stem for engaging said valve elements, a rotatable shaft mounted in hearings in said support, means on said shaft for engaging said valve stem to hold said valve elements in their normal position, a cam member mounted on said shaft and including a plurality of com elements, a, reciprocating plunger, a head'on said plunger for cooperation with one of said cam elements tomove said shaft to' release said valve elements, a resetting shaft, a trip arm carried hv said resetting shaft, a cam fingeincr ried by said resetting shaft. to cooperate with another of said cam elements to reset said cam shaft and thereby restore said valve elements to their normal position, said plungerv having an air duct extending in its length, a pipe connection between said duct and the train pipe air chamber of said valve mechanism, said resetting shaft cam lingercomprising a yieldable member adapted to yield in one direction, means tor holding said member in a normal position, saidplunger head including a member secured to the blunger, an extension pivoted to said member and adapted to coli'perate with said cam, and meansrfor holding said extension and said head member in normal contact.

16. In a, train stopping apparatus, anaair valve adapted to be connected with theair brake sstem, a valve controlling mechae including cam shaft, and means on said shaft for cooperating With saidWalve, a multiple cam on said cam shaft, an..ooersting plunger having a yielding Head to engage one of the cam elements of said multiple cam. to turn said canfshaft in one less 11111 11111111, 11 11 11111111 shaft, :11111 finger 111111 11 111 '11 resetting]; 53111111 101' engaging 1111111111 1 .-i 1 .111 1111111 (11111111111111; to 1115111. 511111. 1::1'11 1:111:1 111 1111111 51111111 i111311111i119; 211.1 :11'111 11 11111 11 1111' 12111511151113 1111 111111 111111 :1 111111111111 111111 1; 111 11011 11101111111111" 11 reciprocating: M111 1111' 1:111311111'111'11111 1111.11 1511111 111'111 to reset 1111111 (111111 511111111.

L1 1111 1111 11111121111111; 0'1. 11110 @1111111 1105101111011 :1 1'1111'11 11191111111115111 111111111 1111111111 111111. the 1111111 1111111 01 1111 1111' 1'1 '111te 51114121111 11 311111 1111111 11101111111111; 1111711111; uniinevniiivc 111111 5111111 1111111 I111H1111111S111 1111' 111111111 51.111. 1 111111 11 111111111111111 111 1110 11111111111. 11051111111 1111 1 1101' 1111,11 1.111111 1111111 111111111111111-111'1 11111111 1511111 11111111 5111:1111- 11; 1111-11011 11 1 11111111110 1111111 1 11 31111.1 111111 1111111111 :1 1120111171111113111 1 111111111111 1':01 11111'- 1 1 with 01111 111? 1.111 0:1111 0101111111113 111? 1111111 1 1111111111111 011111, :1 i'esnt'cing 1111111111, :1. 1 101111111115 111111 1111:1121 1111 811111 109111311111 1 111111111 011131101'- :11111 11 111111 1111011111; 1.11 $11111 1111111 11111111011119, 111111 1111111111.: 1 1111111,: 511111. 1311111 1111:1111 111511111211 :10c.i- 111 1111111 11151111neenmnts.

18. 111. :111 1111112111111; 111' the 01:19.1; 11051111111911, :1 1111111 mechanism 11111111110111.1111 with 111et1'a111 111110 01' 1111 1111' 111111 111 5131319111, 11 011111 51111111; i11- 111111111111 111e:111s 110131.111 111116 with 1.11111 1 1111 11 1111. 1111111115111 1111' 11111111113; said 1 111111 1111101111- 11111111 111 the 11111-111111 nnsiti1111111111'101'1:011:11si11g 1111111 1111 -10 1111 1111111115111 when 1111111 011111 3111111; 1?; 1111111111, 11 1111111111111 (11111101113111 1 (311111 9111113 11 1-11ui 111111111i11 111111153 11 (11 69111111111: with 01111 .111 111111111 1115 'z1i1fl 2111111111110 1111111 9. 11111%. :1 'y1e11111b1i: 1111111 1111;113'

11, 1 011 111111 .11;1;H11:1111; cniipn 'ntive w1th 1111- l 1111 8111 11 1.1) 11101111111 1111 111 111117, 1121111 111111 1111111 11'1511111 11 21111 11; 1111 11111111 1111111111 51111.1 11111111 1 1:1; 11:1 1' 11'1 130111111". 11 11 11min 1111111111119; 11111111 171111111, :1 111111-- 1'111111 1111*."11111111111'1 1 111111111 111111 1111111. 111111 1111' 11111111: 5 111 111111 11111111111113 11 11 1:1111 1111' 111111111 1111 :1 1 1.1 1111111 n11 c111111111111' 111111 1111 11111-111111 111111111111 1; 1111111 1 1111111'1'1ts1 1101111 1111 111111. 1. 1.111111111111111. 111111 11 1111111 $111 .11 1111' 111;;11;1'- 111 11111 111111: 1 1111111 11 10111111111111 8111111 11111111111111 E11 1111:11'111 11 .111 1'1 11 151'1'1 .11)1'1;., 1111111111; 1111 1111111 #1 111 1 1111' 1211211151119; 51.. 1111\11 151111111 111) 1111111 1111 11 1111111 11 1111101119 111 their 1101'111:11 11115111111111 :1 (111111 111011111111 1111111111011 1111 s-a11i11 1111:1111 111111. 11101111111111; :1 1*.11111'111ity of 0111 1 11111 11111111 11 11101111011111 1.111111 111111111111 111 1' 1111511111'111111111 with 111111 111 1111111. 1111111 011 1 11 1111 1'11 11111111: 911111 11111111 to 1'1- 1121111 2 1 '1 111 11 1. 11 111121111511 11 11 %11111119; 1111111 1, 11 11111 $11111 (1:11'1'11 11 111 511111 1 11151111 1111:1111 :1 1111111 1111. '1-1' 11:11'1'1111 11v $211111 11111;: 111 1111: 111 1: 1,1, 11'11'1 111111111121 1.11 1.111111 1111111 111 1- 1111111111 1 1011111 $11111 111111 11111111; 111111. theruby 1711510111 311111 111110 11101111111111 111 their 11111111111 position, 11111 s11111ti1111y :11: 511111111 111111 101' 1.11.1.1 11111110 01-; 1105111111:

port 11 1111111 111011111111is11'1 11111111061111, "with 11111 1111' 111111111 1 1 2111111 11111.1 1111111111111 :1 11111111 1111' 1111:111111121', :1 11'1111'1 1111111 :111' @11111'1113111'. 11111.1 1111 1311111111311 0111111111111, 1111111 1.1111111e11ts 1312111 111111 1111111 C1HU'H1'MBI'F, 111111 :1 '111111 stem for 011111111 1111. $11111 1111111 1 101111 11151, :1 1011 111111111 shaft 11111111111111 111 1112111111 1 11 1 1111110117 1111111111; 1111 1.111111 11111111; 1111' 1 1'11 1111111v 1 11111 1111.111 1111111111111 111 1111311? 11015111111 :1 1 11111 111 1 11111111 11111111111011 011 1111111 9111111; :11111 111111111111 1" :1 111111111171 (11? 1511111 010 1111111 11 1'0 1111111111115: 1311111 111 :1 hand 1111 1111111 111111111111 .11111' 13:111'11111111ti1111 with 1.111 1 1111 1111111. 1.111 21111111171; 1111 11111111 1111111 5111111; 1.11 11 11111511 511111 1: 11' 11111111 111 1, 11 1'12 1111 1" 1 111111), :1 11111 :11'111 11:11'1'11111 111 1111111 11 55111111115 1111:1111. :1 1:11.111 finge 31111-11111 11;. said 10110111 1111111. 1111 011 111 01:11:11 with 11.1111 1' of 1111 11.1 1::1111 1111111111115 111 1'0- set 5 11111 011111 1111111131; :11111 111111113111 1" 1'1115 1111111 1:11.111 0112111111111; 1:11 11111-11' 1101111111 1101.: 11111 '111 resetting: 51111111; 1::1111 1111901 12111'1'1111'isi11g 11 1111111111111: 1111111111111 1111111111211 10 1 112111 in (1111: direction, 111111 1110mm 101' 1111111i11g 1111111 11111111- 11111'1111- 11 1101111111 1111511111011. 7

.111. :1, thin 111111 111 .1 11 1111'11111111 11 $111+ 111111. :1 1:11'1'1-1 1111-1111111! 11 111111111 cti11111 with 1.111: 1111' 111111111 F' 111111 111 1 11111111111111 :1 11111111 1111' 111 "1111 -112, 11 '11 11111 1111111 :111' 111111111111 1, 111111 1111 01:11:111111; 11.1 .71, 1'1111'11 11111111 11111 111 1 11121 11. 1111111 01111111 1111: 111111:1 11111 11 111: 111 1111' 1 111511111111; 111.1111. 1111 91- 111' 11111.11 :1 11111111111111: 11111111 11111111117- 1. 11 111 111 :11'11 11 :.:';1 11111111111 1 1111. 11111 1111:11 5, 1111' 1 :1, i111.1' 1.111111 1 111112 11111111 to 1111111 111 111111; 1 11111101111; 1 1 1111111' 1101111111 1111, :1 1::1111 111111 111111 1 14111111011 011 1.111111 111111 111111111111 11 1111111 11111 111 1111111 1111a- :1 11 11111 1111 1111111 11111111 m' 1 111 (11111 11 1'11'11111 with: 11111 111' 511111 1111111 1211111111111; "111 11111111 111111 1 111111 1 1'11- 1-':1i1 1. 1'111111 1 .111111121111 11 11 1111111.. 11: 111 :11'111 1::11'1'11111 111 1 1" :1 1111111 1111 11 .11 1:1111'11 11 11 1111111. 11 11111111111: 1211:1111 1.11 111113 1111'11111 111111 1111111110: 111 1111111 mm 1 11 1111 11511 1111 11 111 1 1111111 1111111 1 111111 111111 1111110111 11113111111 55.1111. 111111 1 11=1111 11ts 11) their 11111111211 111-1111151. 1 11111 11 1111111111 111 1111 i111'11'11i11 11 11 111111111111 111111111 111 1111 1 1111111 1111, 111111 1111 111(- i 111 1 11. 1.11 11 11: 5111111 1111 11111121 111111 111111111011 1.1.) 1 131111111111 with 1511111 1311111.

1212 [n 11 11min 1111111111111; 111111111: 11151., :1. 111111 111111 11 "1 1111111 11'11111111111is111 11111111121 .1: with 11111 1111 111111411 1 1 111111 11101111111111 :1 11111111 1111' 11111111111111: -11111 1111111 :111' 11111111111 1. :11111 1111 1 1111111111 1.111 1111.121 1111111 11111111111111; 111:1;W1 1111 1111111 1:11.11111111 115 11 1.1 11 1111111 1111 111 1111' 1111g:1;5-- 111;; 1111111 1111111 111 1111111111, :1 11111111111111 $111111 11111111111111 in 1111 111111111 in 1111 -'1111111)1'E;., 1110:1111; 11111111111 11:111 1 11' 111 x 11111 1:11 :11 5111111 1.11 1111111 11 111111; 1111 11111111: 111 11111111 1101111111 111511111111 11. 1111111 11111111111 1 shaft 11111.1. 1110111111115; 11 1111.11':11i.ty 0111 1111111 1 111 aisaaie store said valve elements to their normal position, said plunger head including a member secured to the plunger, an extension pivoted to Saidmember-and adapted to cooperate with said cam.

23. In a train stopping apparatus, a sup .port, a valve mechanism connectible with the air brake system and including a main air chamber, a train pipe air chamber, and an exhaust chamber, valve elements between said chambers, and a valve stem for engaging said valve elements, a rotatable shaft mounted in bearings in said support, means on said. shaft for engaging said valve stem to hold said valve elements in their normal osition a cam member mounted on said shaft and including a plurality of cam elements, a reciprocating plunger, a head on said plunger for cooperation with one of said cam elements to move said sliaf to re'- lease said valve elements, a resetting shaft, a

trip arm carried by said resetting shaft, a

' cam finger carried by said resettingshaft to coiiperate with another of said cam elements to reset said cam shaft andthereby restore said valve elements to their normal position, said resetting shaft cam finger comprising a yieldable member adapted to yield in one direction, said plunger head including a member secured to the plunger, and an extension pivoted to said member and adapted to cooperate with said cam.

24. In a train stopping apparatus, an air valve adapted to be connected with the air brake system, a valve controlling mechanism 3 including a cam shaft, and means on said shaft for coiiperalting with said valve, a multilple cam on said cam shaft, an operating p unger having a yielding head to engage one of the cam elements of said multiple cam to turn said cam shaft in one direction, a resetting shaft, a cam finger yieldably mounted on said resetting shaftfor engaging another of said cam elements to reset said cam shaft, said cam including an arm, a latch for engaging said arm.

25. In a train stopping apparatus, an air valve adapted to be connected with the air brake system, a valve controlling mechanism including a cam shaft, and means on said shaft for codperating with said valve, a multiple cam on said cam shaft, an operating plunger having a yielding head to engage one of the cam elements of said multiple cam to turn said cam shaft in one direction, a resetting shaft, a cam finger yieldably mounted on said resetting shaft for engaging another of said cam elements to reset said cam shaft.

26. In an apparatus of the class .described, a valve mechanism connectible -with the train pipe of an air brake system, a cam shaft including means coiiperating with said valve mechanism for holding said valve mechanism in the normal position and for releasing said valve meghanism when said cam shaft is turned, a multiple cam en said cam shaft, a reciprocating plunger cciiperating with one of the cam elements of said multiple cam, a resetting shaft, a yieldable cam finger on said resetting shaft codperative with another of said cam elements.

27. In a train stopping apparatus, the combination with an air valve, a valve controlling mechanism including a shaft, a re leasin device, a resetting device, both of said evices being normally disconnected fromsaid shaft, said releasing device including a movable body and a yieldable member mounted on said movable bod and adapted to yield in the event that said reoperating plunger including a yieldable head to coiiperate with said cam, and means for resetting said cam shaft to its initialposition.

, JEAN F.-WEBB, JR. Witnesses:

JEAN F. WEBB, P. W. GUMBER. 

